CATEngine Parts

350-0970-247-8974 Stick Cylinder Seal Kit — Cat

This stick cylinder seal kit is essential for maintaining hydraulic system integrity, preventing fluid leaks and ensuring proper cylinder operation within the hydraulic system. Manufactured with high-grade sealing materials, it offers superior resistance to wear and contamination compared to a worn or damaged kit. Operators may observe slow or jerky boom/stick movement, external hydraulic fluid leaks around the cylinder, or a loss of lifting/digging power.

Stick Cylinder Seal Kit – Part No 350-0970-247-8974 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeStick Cylinder Seal Kit
MaterialNBR Rubber and Metal
ApplicationHydraulic System - Stick Cylinder
Service LifeReplace as needed based on wear and leaks
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

External hydraulic fluid leaks around the stick cylinder rod are the most common initial symptom of a failed seal kit. This can progress to sluggish or erratic cylinder movement, and a noticeable decrease in the machine's digging or lifting force. Continued operation risks significant hydraulic system contamination and potential cylinder damage.

Installation Tip

Thoroughly clean the cylinder bore and rod before installing new seals to prevent damage and ensure a proper seal. Do not use sharp tools to pry or force the seals into place, as this can easily nick or cut them.

Service Note

Inspect the hydraulic fluid for contamination and check the condition of the cylinder rod and bore for scoring or wear when replacing the seal kit.